ATE533045T1 - METHOD FOR DETERMINING GAS COMPONENTS IN GAS MIXTURES - Google Patents

METHOD FOR DETERMINING GAS COMPONENTS IN GAS MIXTURES

Info

Publication number
ATE533045T1
ATE533045T1 AT08803035T AT08803035T ATE533045T1 AT E533045 T1 ATE533045 T1 AT E533045T1 AT 08803035 T AT08803035 T AT 08803035T AT 08803035 T AT08803035 T AT 08803035T AT E533045 T1 ATE533045 T1 AT E533045T1
Authority
AT
Austria
Prior art keywords
gas
determining
mixtures
components
sensitive layer
Prior art date
Application number
AT08803035T
Other languages
German (de)
Inventor
Dirk Liemersdorf
Richard Fix
Original Assignee
Bosch Gmbh Robert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE533045T1 publication Critical patent/ATE533045T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/129—Diode type sensors, e.g. gas sensitive Schottky diodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
    • G01N27/4141—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS specially adapted for gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0037—NOx
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Molecular Biology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

The invention relates to a gas sensor (10) for determining gas components in gas mixtures, in particular in exhaust gases from internal combustion engines, having a gas-sensitive layer (17) which is applied to a substrate (13) composed of a semiconductor material and is exposed to the gas mixture to be measured, wherein the gas-sensitive layer (17) contains silver.
AT08803035T 2007-08-22 2008-08-14 METHOD FOR DETERMINING GAS COMPONENTS IN GAS MIXTURES ATE533045T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007039567A DE102007039567A1 (en) 2007-08-22 2007-08-22 gas sensor
PCT/EP2008/060687 WO2009024526A1 (en) 2007-08-22 2008-08-14 Gas sensor

Publications (1)

Publication Number Publication Date
ATE533045T1 true ATE533045T1 (en) 2011-11-15

Family

ID=39926387

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08803035T ATE533045T1 (en) 2007-08-22 2008-08-14 METHOD FOR DETERMINING GAS COMPONENTS IN GAS MIXTURES

Country Status (5)

Country Link
EP (1) EP2179276B1 (en)
CN (1) CN101784891A (en)
AT (1) ATE533045T1 (en)
DE (1) DE102007039567A1 (en)
WO (1) WO2009024526A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012207761A1 (en) * 2012-05-09 2013-11-14 Continental Automotive Gmbh sensor element
DE102012213429A1 (en) * 2012-07-31 2014-02-06 Robert Bosch Gmbh Method and control device for measuring a gas parameter using a gas-sensitive field-effect transistor
DE102016217775A1 (en) * 2016-09-16 2018-03-22 Robert Bosch Gmbh Sensor element for detecting particles of a measuring gas in a measuring gas chamber
DE102018115623A1 (en) * 2018-06-28 2020-01-02 CPK Automotive GmbH & Co. KG Method for measuring nitrogen oxides and device for carrying out the method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951603A (en) * 1972-07-08 1976-04-20 Hitachi, Ltd. Gas-sensor element and method for detecting reducing gas or oxygen gas
JPS577549A (en) * 1980-06-17 1982-01-14 Kuraray Co Ltd Fet gas sensor
US6041643A (en) * 1998-07-27 2000-03-28 General Electric Company Gas sensor with protective gate, method of forming the sensor, and method of sensing
US7254986B2 (en) 2002-12-13 2007-08-14 General Electric Company Sensor device for detection of dissolved hydrocarbon gases in oil filled high-voltage electrical equipment
US7053425B2 (en) * 2003-11-12 2006-05-30 General Electric Company Gas sensor device
DE102004019641B4 (en) * 2004-04-22 2009-10-01 Micronas Gmbh FET-based gas sensor
DE102005010454A1 (en) 2005-03-08 2006-09-21 Robert Bosch Gmbh gas sensor
DE102005033226A1 (en) * 2005-07-15 2007-01-25 Siemens Ag Method for the simultaneous detection of several different air loads
DE102005033639A1 (en) * 2005-07-19 2007-01-25 Robert Bosch Gmbh Porous silicon or silicon carbide gas sensor, used to detect e.g. ammonia or nitrogen oxides in vehicle emissions, is covered by functional sealing layer

Also Published As

Publication number Publication date
DE102007039567A1 (en) 2009-02-26
WO2009024526A1 (en) 2009-02-26
EP2179276A1 (en) 2010-04-28
EP2179276B1 (en) 2011-11-09
CN101784891A (en) 2010-07-21

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